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2025 GMC SIERRA 1500 AT4 4WD 3.0L DURAMAX TURBO-DIESEL I6 CARBONPRO EDITION AT4 PREMIUM PACKAGE STERLING METALLIC LANCASTER PA
This 2025 GMC Sierra 1500 AT4 4WD is powered by the efficient and capable 3.0L Duramax Turbo-Diesel I6 paired with a 10-speed automatic transmission, delivering exceptional low-end torque, outstanding highway fuel economy, and impressive towing performance. Finished in Sterling Metallic, this Sierra is equipped with the exclusive AT4 CarbonPro Edition, AT4 Premium Package, Technology Package, and a Power Sunroof, making it one of the most desirable off-road trucks GMC offers.
The 3.0L Duramax Turbo-Diesel is engineered for drivers who want diesel performance without stepping into a heavy-duty truck. Its abundant torque makes towing campers, boats, and enclosed trailers feel effortless while delivering excellent fuel efficiency for long road trips. An integrated trailer brake controller, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Hitch View, Hitch Guidance, and the In-Vehicle Trailering System App provide added confidence every time you hook up a trailer.
The AT4 trim is built for adventure with an auto-locking rear differential, Hill Descent Control, red recovery hooks, off-road suspension tuning, and high-clearance styling that allows you to confidently explore trails, hunting property, and backroads without sacrificing everyday comfort.
One of the standout features is the CarbonPro Edition, which includes GMC's innovative carbon fiber composite bed. The CarbonPro bed is lighter than traditional steel, highly resistant to dents, scratches, and corrosion, and designed to withstand years of heavy use without sacrificing durability. It is a premium feature rarely found on other full-size pickups.
Inside, the AT4 Premium Package surrounds you with perforated leather seating in Jet Black with Kalahari accents, heated and ventilated front seats, heated rear outboard seats, wireless charging, a premium Bose sound system, and a power sunroof. The Technology Package adds a 15-inch multicolor Head-Up Display, HD Surround Vision, Rear Camera Mirror, and advanced driver-assistance features that make daily driving and towing easier than ever.
See this Sierra today at Mark Martin Motors in Ephrata, proudly serving Lancaster, Lititz, Lebanon, and York. Call or message us today to check availability or schedule your test drive.